类比法计算天然气可采储量

Calculation of Natural Gas Recoverable Reserves by the Analogy Method

在动态资料缺乏的情况下,应用类比法求采收率是一种简便、快速的计算方法。通过选取合适的参数以及适当的方法,依然可以获得理想的结果。预测油田原始可采储量方法分为动态法和静态法,动态法包括驱油效率法、产量递减法、水驱曲线法等;静态法包括类比法、相关经验公式法、地质综合评价法、经验值法等。其中类比法是一种相对简单而且实用的逻辑推理方法。以喇嘛甸油田萨零组北块为例,运用类比法估算天然气原始可采储量,并通过经验值法进行验证。

In the case of lacking of dynamic data, the analogy method is a kind of method for obtaining recovery ratio easily and quickly. Ideal results can be obtained by choosing suitable parameters and methods. The methods to predict initial reserves of oil field include dynamic method and static method. The dynamic method includes oil displacement efficiency method, production decline method, and the method of water driving curve and so on. The static method includes analogy method, relevant empirical formula method, geological comprehensive evaluation method, experience value method and so on. The analogy method is simple and practical ratiocinating method. In this paper, taking the north block of SO group in Lamadian oil field as an example, iiaitial reserves of natural gas was estimated by the analogy method, and the result was verified by experience value method.